Home / 22,035.72-30,421.16-16,988.88

Finding the Fourth Proportional to 22,035.72, 30,421.16 and 16,988.88

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Solution

The fourth proportional to 22,035.72, 30,421.16 and 16,988.88 is: 23,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,035.72 : 30,421.16 = 16,988.88 : x
  2. Step 2: Convert to fraction form
    22,035.72/30,421.16 = 16,988.88/x
  3. Step 3: Cross multiply
    22,035.72x = 30,421.16 × 16,988.88
  4. Step 4: Simplify right side
    22,035.72x = 516,821,436.70
  5. Step 5: Solve for x
    x = 516,821,436.70/22,035.72
  6. Step 6: Final answer
    x = 23,453.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.